Hard-to-Find Fastener 014973221454 Metric Tension Pins (12 Piece)， 4mm x 20mm<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Diameter: 4Mm</li><li>Length: 20Mm</li><li>Type: tension pin</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41tYbN8H02L.jpg" noproxy>